Type 3 : Purple range armour PK-79, PK-81 to 86 - 5 PixFrom 1974 the purple series armour range was further extended whilst the transition to the type 3 layout was taking place. Oddly the PK-79 M24 Chaffee was released in a type 3 box whilst PK-80 still got the type 2 layout with the rectangular logo. From PK-81 to 86 the boxes were released in type 3 layout.